Methods of isolating zones in subterranean formations using self-degrading cement compositions
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United States of America Patent
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Mar 3, 2009
Grant Date -
Aug 3, 2006
app pub date -
Jul 22, 2005
filing date -
Feb 1, 2005
priority date (Note) -
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Abstract
Methods of isolating particular zones within a subterranean formation utilizing self-degrading cement compositions are provided. An example of a method of the present invention is a method that includes: providing a self-degrading cement composition that includes a degradable material, an acid source, a base source, and a water source; placing the self-degrading cement composition in a zone within a subterranean formation; and allowing the self-degrading cement composition to set to form a solid mass that is capable of isolating the zone from a well bore penetrating the zone or from another zone.
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